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0932587328
mm/bootmem.c contained code paths for both bootmem and no bootmem
configurations. They implement about the same set of APIs in
different ways and as a result bootmem.c contains massive amount of
#ifdef CONFIG_NO_BOOTMEM.
Separate out CONFIG_NO_BOOTMEM code into mm/nobootmem.c. As the
common part is relatively small, duplicate them in nobootmem.c instead
of creating a common file or ifdef'ing in bootmem.c.
The followings are duplicated.
* {min|max}_low_pfn, max_pfn, saved_max_pfn
* free_bootmem_late()
* ___alloc_bootmem()
* __alloc_bootmem_low()
The followings are applicable only to nobootmem and moved verbatim.
* __free_pages_memory()
* free_all_memory_core_early()
The followings are not applicable to nobootmem and omitted in
nobootmem.c.
* reserve_bootmem_node()
* reserve_bootmem()
The rest split function bodies according to CONFIG_NO_BOOTMEM.
Makefile is updated so that only either bootmem.c or nobootmem.c is
built according to CONFIG_NO_BOOTMEM.
This patch doesn't introduce any behavior change.
-tj: Rewrote commit description.
Suggested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
52 lines
1.7 KiB
Makefile
52 lines
1.7 KiB
Makefile
#
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# Makefile for the linux memory manager.
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#
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mmu-y := nommu.o
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mmu-$(CONFIG_MMU) := fremap.o highmem.o madvise.o memory.o mincore.o \
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mlock.o mmap.o mprotect.o mremap.o msync.o rmap.o \
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vmalloc.o pagewalk.o pgtable-generic.o
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obj-y := filemap.o mempool.o oom_kill.o fadvise.o \
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maccess.o page_alloc.o page-writeback.o \
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readahead.o swap.o truncate.o vmscan.o shmem.o \
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prio_tree.o util.o mmzone.o vmstat.o backing-dev.o \
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page_isolation.o mm_init.o mmu_context.o percpu.o \
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$(mmu-y)
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obj-y += init-mm.o
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ifdef CONFIG_NO_BOOTMEM
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obj-y += nobootmem.o
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else
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obj-y += bootmem.o
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endif
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obj-$(CONFIG_HAVE_MEMBLOCK) += memblock.o
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obj-$(CONFIG_BOUNCE) += bounce.o
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obj-$(CONFIG_SWAP) += page_io.o swap_state.o swapfile.o thrash.o
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obj-$(CONFIG_HAS_DMA) += dmapool.o
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obj-$(CONFIG_HUGETLBFS) += hugetlb.o
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obj-$(CONFIG_NUMA) += mempolicy.o
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obj-$(CONFIG_SPARSEMEM) += sparse.o
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obj-$(CONFIG_SPARSEMEM_VMEMMAP) += sparse-vmemmap.o
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obj-$(CONFIG_SLOB) += slob.o
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obj-$(CONFIG_COMPACTION) += compaction.o
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obj-$(CONFIG_MMU_NOTIFIER) += mmu_notifier.o
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obj-$(CONFIG_KSM) += ksm.o
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obj-$(CONFIG_PAGE_POISONING) += debug-pagealloc.o
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obj-$(CONFIG_SLAB) += slab.o
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obj-$(CONFIG_SLUB) += slub.o
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obj-$(CONFIG_KMEMCHECK) += kmemcheck.o
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obj-$(CONFIG_FAILSLAB) += failslab.o
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obj-$(CONFIG_MEMORY_HOTPLUG) += memory_hotplug.o
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obj-$(CONFIG_FS_XIP) += filemap_xip.o
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obj-$(CONFIG_MIGRATION) += migrate.o
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obj-$(CONFIG_QUICKLIST) += quicklist.o
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obj-$(CONFIG_TRANSPARENT_HUGEPAGE) += huge_memory.o
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obj-$(CONFIG_CGROUP_MEM_RES_CTLR) += memcontrol.o page_cgroup.o
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obj-$(CONFIG_MEMORY_FAILURE) += memory-failure.o
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obj-$(CONFIG_HWPOISON_INJECT) += hwpoison-inject.o
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obj-$(CONFIG_DEBUG_KMEMLEAK) += kmemleak.o
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obj-$(CONFIG_DEBUG_KMEMLEAK_TEST) += kmemleak-test.o
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